The Surface-Water Modeling
System, Version 8
The Department of Defense (DoD) Surface-Water Modeling System (SMS) is a compre-
hensive software package that facilitates the understanding and management of coastal and
inland waterways and wetland areas. This graphical modeling environment incorporates a
suite of numerical modeling programs that allow civil engineers and others involved in
hydrodynamic modeling to visualize these waterways, evaluate design proposals and
alternatives, and predict their effectiveness.
SMS provides tools for every phase of a hydraulic simulation including site characteriza-
tion, model development, post-processing, calibration, and visualization. It provides an
integrated graphical environment for performing surface flow, contaminant fate/transport,
and project design evaluations. SMS, which was developed by the U.S. Army Corps of
Engineers, is the most sophisticated riverine, wetland, coastal, and estuarine modeling
environment available today.
Throughout its history of managing and maintaining navigation, coastal and inland water-
ways, and wetland areas, the U.S. Army Corps of Engineers has encountered environ-
mental problems due to the unpredictable and complex conditions created by nature.
Impact of flooding in terms of lives and property damage continues to escalate as modern
U.S. Army Engineer Research and Development Center